Relationship between cementoenamel junction and buccal bone thickness examined
A study from researchers at the University of Valencia has examined the relationship between the distance from the cementoenamel junction to the alveolar bone crest, and buccal bone thickness.
The study involved a cross-sectional examination of CBCT scans from 37 patient. Patients with periodontal disease, orthodontic or prosthetic restorations were excluded from the study. Patients were split into three groups based on the distance between the cementoenamel junction and the alveolar bone crest. The groups were ≤ 3.5 mm, 3.5-5 mm and ≥ 5 mm. Buccal bone crest thickness measurements were made at 1, 2 and 3 mm apical to the bone crest.
The researchers observed a statistical difference between the three groups. It was found that in cases where there was a larger difference between the cementoenamel junction and the alveolar crest, buccal bone width was thinner. The study suggests that analysis of buccal bone width before extraction can help to predict bone loss and avoid complications. Finally, the authors note that further study is needed to analyse buccal bone resorption following tooth extraction.
This study was presented as an e-poster at the 2017 EAO Congress.